Equalizer for windmill-operated pumps



Patented Jan. [0, I899.

J. WILLMANN. EUUALIZEB FUR WINDMILL OPERATED PUMPS.

(Application filed Nov. 8, 1898.)

(No Model.)

QN M UNITED STATES PATENT Onnicn.

JOSEPH XVILLMANN, OF SOLM'S, TEXASf EQUALI ZER FOR WINDMILL- OPERATED PUMPS.

SPECIFICATION forming part of Letters Patent No. 617,496, dated J anuaryv 10, 1899. Application filed November 8 1898- No. 695,881. (No model.)

To all whom it may concern.-

- Be it known that I, JOSEPH WILLMANN, a citizen of the United States, residing at Solm's, in the county of Comal and State of Texas, have invented a new and useful Equalizerfor Windmill-Operated Pumps, of which the following is a specification.

My invention relates to an equalizer for windmill-operated pumps; and the object in view is to provide a mechanism adapted for use in connection with an ordinary pump and any style of windmill by which the power of the mill is assisted in lifting the weight of the column of water in the pump.

,In the operation of ordinarypu'mps or mills a considerable portion of the mills power is exerted in lifting the weight of the pump-rod, and this weight added to that of the liquid column in the pump requires the expendi ture of considerable mill-power in performing mechanical work which, from the standpoint of my invention, is overcome.

My equalizer is combined with a pump-rod in a manner to normally counterpoise the weight of said pump-rod and to lift the same, thus requiring the'pump-rod to be depressed by the mill-shaft, but on the upstroke of the pump-rod the equalizer lifts the weight of saidrod, so that the mill is only required to lift the weight of the liquid column in the pump.

The operative elements of my equalizer are so combined as to exert the power of two counterpoised levers at a single point on the pump-rod, and the 'counterpoises or Weights of said levers are shiftable to vary the lifting effect of the levers, so that the equalizer may be adjusted to vary the lifting effect of the pump according as it is to be used in wells which require water to be lifted at varying distances.

The invention consists in the novel construction and arrangement of parts, which will be hereinafter fully described and claimed.

To enable others to understand the invention, I have illustrated the same in the ac companying drawings, forming a part of this specification, and in which Figure 1 is a side elevation illustrating my equalizer applied to a pump-rod which is to be actuated by a windmill. Fig. 2 is a vertical sectional elevation on the plane indicated by the dotted line 2 2 of. Fig. 1. Fig. 3 is a horizontal section on the line 3v 3 of Fig. 2.

Like numerals of reference denote like and corresponding parts in each of the severa figures of the drawings. 10 designates a tube or pump-stock forming a part of an ordinary well, and 11 is the pum p-rod, which passes through the tube and is adapted to be connected with any type of windmill.- As the pump and the mill do not constitute any partof the present invention, I have not deemed it necessary to particularly illustrate or describe said parts.

To adapt my equalizer for use in connection with the pump-rod 11, I provide a supporting-clamp 12, which is fastened directly to the tube or stock 10. This clamp consists of an armed plate 13, a yoke 14, and a braceplate 15. The plate 13 of the supportingclamp is provided at its lower end with lateral arms 16, and said arms are perforated for the reception of the threaded ends of the yoke 14. The plate 13 is bent or curved, as at 17, to provide a seat by which the plate may be applied firmly to the tube or stock 10, and, as shown by Fig. 3, this plate is designed to be fitted against one side of the tube 10, while the yoke 14 embraces the other side of the tube in a manner for its ends to pass through the arms 16 and receive the nuts 18, by which the clamp may be firmly attached to the tube 10. The brace-plate 15 lies parallel to the vertical plate 13, and its lower end is bent inwardly for secure attachment bya rivet or bolt tothe plate 13 at the lower edge thereof. A space is provided between the plates 13 15 'of the su pporting-clamp to receive the crossed them to cross each other and to fit properly 7 in the space between the vplates 13 15 of the supporting-clamp, whereby said levers are adapted to lie compactly in the clamp and to be fulcrumed thereon by a single bolt 19. These levers are fitted on the bolt at points intermediate'of their length to provide the short and long arms, and the long lever-arms carry the weights 23. Said weights are fitted loosely on the long arms of the levers, so as to be shiftable or adjustable lengthwise, and each weight is provided with a binding-screw 24, that is fitted in a threaded opening of the weight and is adapted to bind against the lever. The short arms of said weighted levers are attached to the links 25 26 by the pivots 27, and these links are pivoted individually to their respective levers, while the upper ends of the links are attached at a common point to the pump-rod 11 by a single attaching-bolt 28. This bolt passes through the lapped upper ends of the two links, a washer 29, and a brace 30. The washer 29 is interposed between the pump-rod and one of the links to obviate abrasion and wear on the parts, and the brace 30 is arranged above the links, so as to have its lower end overlap one of said links. The brace is disposed in a vertical position substantially above the bolt 28 for the purpose of fastening the upper end.

of said brace to the pump-rod by a bolt or rivet 31.

My equalizer may be attached to any ordinary pump or windmill. The weighted levers tend normally to lift the pump-rod, and they serve to sustain the weight of said pump-rod and a fraction of the weight of the liquid column which is to be lifted by the mill. The operation of the apparatus requires the millshaft to depress the pump-rod against the lifting action of the weighted levers; but on the upstroke of the pump-rod said levers assist the mill in raising the rod and the liquid column, whereby the equalizer performs a part of the labor in lifting the rod and the water and the strain is reduced proportionately on the operative parts of the mill. In deep wells which require water to be lifted to a considerable height the weights are moved toward the outer ends of the long lever-arms, so as to increase the leverage and lifting effect of the equalizer; but in wells in which the Water rises nearly to the top of the tubing it is not necessary for the equalizer to exert so much leverage on the pump-rod. Hence the weights can be moved inward toward the fulcrum of the levers.

By bending the levers at 22 and attaching the links to opposite sides of the levers the operating parts of the equalizer are arranged to move past one another, and thus any desired stroke or movement of the pump-rod may be attained without interference of the working parts one with the other.

Changes may be made in the form of some of the parts, while their essential features are retained and the spirit of the invention embodied. Hence I do not desire to be limited to the precise form of all the parts as shown, reserving the right to vary therefrom.

What I claim is 1. The combination with a tube, of a support fastened thereto, weighted levers mounted on said support by a fulcrum-bolt which is common to both levers, and links pivoted individually to said levers and having a common connection with a pump-rod, substantially as described.

2. The combination with a tube, of a supporting-clamp attached to said tube, a single fulcrum-bolt supported by the clamp, the crossed levers fulcrumed on said bolt, the

'shiftable weights clamped to said levers, a

' ually to short arms of the levers, and having a single pivotal connection with said rod, substantially as described.

In an equalizer for pump-rods, a supportingclamp consisting of a bent armed plate, a yoke having its ends connected to the arms of said plate, and a brace fastened to the plate, in combination with bent levers having their short arms crossed within the space between the plate and brace of said clamp, a fulcrum-bolt supported in the clamp and passing through said levers, the counterpoise-weights on the long arms of said levers, a pump-rod, and a pair of links pivoted individually to short arms of the levers and havinga single pivotal connection with the pumprod, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

JOSEPH WILLMANN.

Witnesses:

H. WAGENFRUHR, PETER LENZEN. 

